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https://issues.apache.org/jira/browse/MAPREDUCE-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated MAPREDUCE-1098:
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Attachment: patch-1098-6.txt
Fixed findbugs warning
> Incorrect synchronization in DistributedCache causes TaskTrackers to freeze
> up during localization of Cache for tasks.
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1098
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1098
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tasktracker
> Reporter: Sreekanth Ramakrishnan
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.21.0
>
> Attachments: MAPREDUCE-1098.patch, MAPREDUCE-1098.patch,
> MAPREDUCE-1098.patch, patch-1098-0.20.txt, patch-1098-1.txt,
> patch-1098-2.txt, patch-1098-3.txt, patch-1098-4.txt, patch-1098-5.txt,
> patch-1098-6.txt, patch-1098-ydist.txt, patch-1098.txt
>
>
> Currently {{org.apache.hadoop.filecache.DistributedCache.getLocalCache(URI,
> Configuration, Path, FileStatus, boolean, long, Path, boolean)}} allows only
> one {{TaskRunner}} thread in TT to localize {{DistributedCache}} across jobs.
> Current way of synchronization is across baseDir this has to be changed to
> lock on the same baseDir.
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